Abstract: A method and a device for transmitting audio data based on Bluetooth low energy are disclosed. The method comprising: obtaining a plurality of audio data frames to be transmitted; dividing a quantized spectrum of each audio data frame into M groups of spectrum respectively, wherein M is a positive integer greater than 1; dividing each audio data frame into N groups of data based on the M groups of spectrum, wherein N is a positive integer greater than 1, and the N groups of data have different transmission priorities; and transmitting the N groups of data according to their respective transmission priorities within a preset transmission times range based on a predetermined Bluetooth low energy transmission protocol, wherein the group of data with a lower transmission priority is transmitted only after the group of data with a higher transmission priority is received correctly.

Abstract: A camera may use a multi-axis image sensor shifting system to implement both autofocus (AF) and optical image stabilization (OSI) functions. The multi-axis image sensor shifting system may include a flexure suspension arrangement and an actuator. The flexure suspension arrangement may include an inner frame, an intermediate frame, and an outer frame. The actuator may include one or more magnets, and two sets of one or more coils attached respectively to some of the frames of the flexure suspension arrangement. Current flowing through the coils may be regulated to interact with the magnetic field of the magnets to generate motive force to move an image sensor of the camera relative to a lens group in multiple directions.

Abstract: In an indication information receiving method, a first terminal device receives first indication information from a first network device, and sends information about at least one HARQ process of the first terminal device to the first network device based on the first indication information, where the information about the at least one HARQ process includes a process number of a first HARQ process. The first terminal device receives first data from the first network device through the first HARQ process. This can improve reliability during data transmission.

Abstract: Various arrangements for providing authenticated caller information for voicemail are presented herein. A terminating telephony service provider system can receive a request to connect a telephone call, the request comprising a session initiation protocol (SIP) identity header. The terminating telephony service provider system can perform a verification based on the SIP identity header. A voicemail may be created based on audio received from the calling party via the telephone call. SIP header information can be stored and mapped to the voicemail. The terminating telephony service provider system can then output, to a called party user equipment (UE), an indication of the voicemail with an indication of the verification based on the SIP identity header.

Abstract: A road paver includes: a head; a body including a front end and a tail end; a feeding device, disposed in the front end to convey polyurethane concrete, and the feeding device including a stirring device; a stone paving device, disposed on the tail end to spread crushed stone over a road, and the stone paving device including a stone feed bin carrying the crushed stone; and a concrete paving device, disposed between the feeding device and the stone paving device and connected to the stirring device, and used to spread the polyurethane concrete across the road.

Abstract: This application provides a communication method and a communications device. The method includes: A first device receives a first message sent by a second device. The first message is used to indicate a bearer configuration of a bearer of the first device and an initial status of the bearer configuration, and the bearer configuration includes a first bearer configuration and/or a second bearer configuration. The first device determines the bearer configuration and the initial status of the bearer configuration based on the first message. According to the technical solutions in embodiments of this application, a bearer configuration of a terminal device and an initial status of the bearer configuration of the terminal can be indicated. Because both the bearer configuration of a bearer of the terminal and the initial status of the bearer configuration of the terminal are indicated, communication efficiency is improved.

Abstract: A bonding structure includes a substrate, a first sensing electrode layer, a second sensing electrode layer, an optical film layer, and a protective layer. The substrate has opposite first and second surfaces. A sensing area and a bonding area are defined on the substrate. The first sensing electrode layer is disposed on the first surface. The second sensing electrode layer is disposed on the second surface. The optical film layer covers the first sensing electrode layer and has a first bonding opening located in the bonding area. The protective layer covers the second sensing electrode layer and has a second bonding opening located in the bonding area. The first and second bonding openings respectively expose a part of the first sensing electrode layer and a part of the second sensing electrode layer and are misaligned in a direction perpendicular to the first or second surface.

Abstract: A cover plate used in an electronic device includes a glass layer and at least one transparent covering layer. The glass layer has a first surface and a second surface. The transparent covering layer contacts and is disposed on at least one of the first surface and the second surface, and the transparent covering layer is laminated with the glass layer. The cover plate has a Young's modulus of about 10 GPa to about 200 GPa.

Abstract: A neural network model training method includes: first obtaining a codeword corresponding to a first weight matrix of a neural network model from a memory; then determining, based on the codeword, that a weight matrix of the neural network model is the first weight matrix, and training the first weight matrix by using training data; updating the codeword when a preset stop condition is not met, to obtain an updated codeword; next determining, by using the updated codeword obtained from the memory, that the weight matrix of the neural network model is a second weight matrix, and training the second weight matrix by using training data; and further stopping training of the neural network model when the preset stop condition is met. Memory space occupied by the codeword is far less than that occupied by the weight matrix, and therefore a data amount read from the memory can be reduced.

Abstract: Techniques for constant envelope phase modulation and demodulation of a wireless signal such as BLE are described. The method comprises: dividing a binary data stream to be transmitted into a plurality of groups of binary data according to a predetermined phase modulation mode, each group of binary data comprising a plurality of bits; mapping the binary data stream into a plurality of phase symbols, wherein each group of binary data is mapped into one phase symbol; modulating a phase sequence composed of the phase symbols into a phase signal using a phase waveform obtained by integrating a predetermined pulse function; and converting the phase signal into two baseband signals by means of a cosine function and a sine function respectively.

Abstract: An interface integration method of AGV job automatic scheduling system and MES system includes an AGV job automatic scheduling system unit, an MES system unit and a data transmission and processing unit. The data transmission and processing unit performs interface integration through a data dictionary which includes multiple data sets. Based on the standardized data dictionary integration method, the relevant data in the manufacturing process in the factory are classified and stored in the above-mentioned multiple data sets, respectively, which can greatly reduce the non-standard customization characteristics of data that need to be mutually integrated when the interface of the MES system unit is integrated with the interface of the AGV job automatic scheduling system unit, thereby facilitating the seamless and standardized integration of the MES system and the AGV system in the manufacturing process in digital workshops or smart factories, and enabling interconnection and interoperability.

Abstract: This application provides a communication method, includes: sending N data packets in M data packets to an access network device through an air interface; sending M-N data packets in the M data packets to the access network device over a first relay link, where the first relay link includes a first link and a second link, the first link is a link between a terminal device and a first relay terminal, and the second link is a link between the first relay terminal and the access network device; and sending request information to the access network device when a link quality of the first link is less than or equal to a first preset threshold, where the request information is for requesting to update the first relay link to a second relay link.

Abstract: In accordance with one implementation of the present disclosure, a new approach for determining a movement orientation of a user is proposed in indoor navigation. Generally speaking, a device orientation of a terminal device is obtained based on at least one signal stream collected from the terminal device carried by a moving user. A deviation degree is determined based on the at least one signal stream, here the deviation degree represents a deviation between a movement orientation of the user and an actual device orientation of the terminal device. The movement orientation is determined based on the device orientation in accordance with a determination that the deviation degree is below a threshold degree. With the above implementation, the movement orientation of the user is determined in a more effective an accurate way, and thus accuracy of the indoor navigation is increased.

Abstract: A wireless multi-channel audio transmission method and a wireless multi-channel audio transmission device are disclosed in the present invention. The wireless multi-channel audio transmission method comprises: dividing the N channels of audio data into M groups of subset channel audio data, wherein each group of subset channel audio data comprises at least one channel of audio data; and transmitting the M groups of subset channel audio data to the M subset channel audio receiving devices through M transmission modules in parallel, wherein each of the transmission modules adopts a different transmitting frequency at the same time, and the transmission modules used for transmitting each group of subset channel audio data are changed according to a preset changing rule. Thus, frequency division multiplexing and spatial diversity are used to improve transmission bandwidth, reduce transmission delay and increase transmission reliability of wireless multi-channel audio transmission.

Abstract: A training apparatus used for model training on a neural network in the field of artificial intelligence (AI) is disclosed. The training apparatus includes a plurality of accelerators. In a parallel processing process in which the training apparatus trains a neural network model using the plurality of accelerators, a complete weight coefficient of the neural network model is stored in the plurality of accelerators in the training apparatus in a distributed manner. Weight coefficients of the plurality of accelerators are subsequently added to obtain the complete weight coefficient. The neural network model is further trained on each accelerator based on different input data and the complete weight coefficient. Thus, the complete weight coefficient is stored in the plurality of accelerators in the training apparatus in a distributed manner, to reduce video random access memory (RAM) consumption of the training apparatus in a training process of the neural network model.

Abstract: In a key obtaining method and an apparatus, a first core network device obtains a first key, and the first core network device performs derivation based on the first key to obtain a second key and a third key. The second key is for performing security processing on control plane signaling of a terminal device, and the third key is for performing security processing on user plane data of the terminal device. The first core network device sends the second key to a control plane entity of a first access network device, and sends the third key to a user plane entity of the first access network device.

Abstract: Embodiments of this application provide an uplink measurement management method. The method includes: A radio access network (RAN) device receives a first message from a positioning device, where the first message is used by the positioning device to request the RAN device to perform uplink measurement, and the first message includes a measurement periodicity and a measurement amount. The RAN device measures an uplink sounding reference signal (SRS) of a terminal device based on the measurement periodicity and the measurement amount, and sends a first response to the positioning device, where the first response includes a measurement result of the uplink SRS.

Abstract: A device for fatigue test includes a sample-laying part, a sample support, and a force-applying part. The sample-laying part is disposed on the sample support; and the force-applying part is disposed on the sample-laying part; the sample-laying part includes a substrate plate and at least two arms disposed on the substrate plate; the sample support includes a bed plate and at least four roller assemblies disposed on the bed plate; each roller assembly includes a roller, a roller support, and an adjusting bolt; the roller support is disposed on the bed plate; the roller is disposed on the roller support; the adjusting bolt is disposed between the roller and the roller support; and the sample support further includes at least one barrier, and both ends of the barrier are connected to two adjacent roller supports, respectively.

Abstract: In accordance with one implementation of the present disclosure, a new approach for identifying a stepping event is proposed in indoor navigation. Generally speaking, a first signal fragment and a second signal fragment respectively within a first time window and a second time window in an acceleration signal stream are obtained, here the acceleration signal stream is collected from an acceleration sensor associated with a moving user, the first time window being shorter than the second time window. A first amplitude feature and a second amplitude feature are determined for the first and second time windows based on the first and second signal fragments, respectively. A stepping event of the user is identified based on a deviation between the first and second amplitude features. With the above implementation, the stepping event is identified in a more effective an accurate way, and thus accuracy of the indoor navigation is increased.